The Raspberry Pi device looks kinda like a motherboard, with the mounted chips and ports exposed (something you'd expect to see only if you opened up your computer and looked at its internal boards), but it has all the components you need to connect input, output, and storage devices and start computing. It looks werid and got me intersested. I was asking myself questions, How does it work? what does it do? Is it in every electronic device we have? In order to power it on you need 5 V; 3 A (for full power delivery to USB devices).